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Greitosios daugybos formulės

Authored by Daiva Pušinskienė

Mathematics

8th Grade

Used 11+ times

Greitosios daugybos formulės
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sudauginkite

( x - 8)(8 +x)

x - 64

x+16

x2 - 64

x2 + 64

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sudauginkite

(3x + 4y)(4y - 3x)

16y2 + 9x2

16y2 - 9x2

4y2 - 3x2

9x2 - 16y2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sumą pakelkite kvadratu

( 2x - 6)2

4x + 6

4x2 - 24x - 36

4x2 - 36

4x2 - 24x +36

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atskliauskite

(2x - 3)( 4x -5)

8x2 -22x+ 15

8x2 -2x+ 15

8x +15

6x2 - 22x +8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pakelkite skirtumą kvadratu

(0,5 x - 2)2

0,5x2 - 2x +4

0,25x2 - 2x +4

0,25x2 - 2x - 4

0,25x2 - 4x + 2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atskliauskite ir suprastinkite reiškinį

5x - (6x - 3)(6x +3)

36x2 +9

5x - 36x2 +9

5x - 36x2 - 9

5x - 6x2 -9

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Iškelikte už skliaustų bendrą dauginamąjį

5x +25xy

5(x +y)

5x(1 + 5y)

25( x +y)

5(x+5xy)

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